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A planar and stable derivative of 13,14-didehydrotribenzo[a,c,e]cyclooctene: synthesis and x-ray crystal structure of 5,6-didehydro-1,1,14,14-tetramethyl-10,11-methano-1H-benzo[5,6]cycloocta[1,2,3,4-def]fluorene

✍ Scribed by Wang, Xiaomin; Wang, Ruji; Mak, Thomas C. W.; Wong, Henry N. C.


Book ID
126850678
Publisher
American Chemical Society
Year
1990
Tongue
English
Weight
278 KB
Volume
112
Category
Article
ISSN
0002-7863

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## Abstract The molecular structures of the title compounds 3 and 5 were investigated by NMR and X‐ray structural methods. The NMR results suggest two equivalent halves for both molecules. The X‐ray study shows an approximate mirror plane for 3 and an approximate twofold axis for a significant port